Pipe construction with a detachable bowl and stem



March 5, 1963 F. A. FASSBENDER PIPE CONSTRUCTION WITH A DETACHABLE BOWL AND STEM Filed March 25, 1961 L; 11111111 Int/2:1); L

INVENTOR assbender Fl G .7.

Fl eat-TI K Unite States Patent $379,927 Patented Mar. 5, 1963 ice 3, l79927 PEPE CGNS RUCTE N WETH A DETACHABLE i W1 AND STlEh i Frederick A. Fassbender, West Grange, Ni, assignor to S. M. Frank 3; =Co., Inc, New York, N.Y., a corporation of York Filed Mar. 23, E61, Ser. No. 97,839 6 Claims. (Q1. Bib-1%) This invention relates to smoking pipes and has for one of its objects the provision of novel means by which the stern and bowl of the pipe can be detachably connected, thereby permitting instant separation of the parts whenever required or desired.

it is another object of the invention to provide means in the pipe by which a ceramic or other type of filter may be housed within the bowl below the tobacco well, and to provide means by which the filter can be easily removed for replacement, cleaning or otherwise whenever required.

It is an object of the present invention to provide a pipe stem in which a centrally and axially positioned smoke tube is employed, which tube is spaced from the inner surfaces of the stem, thereby providing an air space between the smoke tube and the stem resulting in a relatively cool stem.

More particularly, the invention contemplates the provision of a pipe bowl having a lower cylindrical and integral extension providing a filter chamber in which a filter is housed, with the lower end of such extension closed by a removable plug, permitting by its removal, the extraction of the filter. The invention further contemplates the provision of a hollow stem carrying a split ring at one end, which ring embraces the lower part of the bowl; of a smoke tube axially displaceable within the stem and normally having a tapered end urged by a spring into a sealing fit within a bushing in the bowl to thereby retain the stem in coupled relation to the bowl. The invention further contemplates the provision of a locating pin operative to register the tapered end of the smoke tube with the bushing when the ring is fitted around the lower part of the bowl.

With these and other objects to be hereinafter set forth in view, l have devised the arrangement of parts to be described and more particularly pointed out in the claims appended hereto.

In the accompanying drawing, wherein an illustrative embodiment of the invention is disclosed:

FIG. 1 is a side elevational view of a'pipe constructed according to the invention;

FIG. 2 is a partial longitudinal vertical sectional view through the same, in an enlarged scale, the grooves or channel in the filter being omitted;

FIG. 3 is a side elevational view of the filter;

FIG. 4 is a top plan view of the filter;

P16. 5 is a vertical sectional view through the filter;

FIG. 6 is a top plan view of the stem and the bowlencircling ring connected to the same;

FIG. 7 is a side elevational view of the smoke tube and associated parts, and

FIG. 8 is an end view of the pipe as seen from the left of FIG. 1.

Referring to the drawing, 1 indicates the bowl of the pipe, and which may be made in various known shapes and may be composed of wood or of any other material found suitable for pipe bowl construction. The bowl is provided with the tobacco-receiving Well 2, and it is also provided with a cylindrical, integral downward extension 3, the upper end of which is defined by an annular shoulder 4. Provided in the bowl 1 below the tobacco-receiv ing well 2 and extending through the cylindrical extension 3, is a smoke chamber 5 for receiving and retaining a filter shown at 6. The filter 6 of the present embodiment is shown in detail in FIGS. 3 to 5 inclusive and it is preferably composed of a ceramic and other materials scientifically compounded to produce a high refractory, non-toxic filter having absorptive and other characteristics which aid materially in the removal of moisture, toxic acids, tars and solid particles, filtering the smoke while retaining the desired tobacco taste for the smoker.

In the form shown, the filter is substantially spoolshaped, the same thus having an upper disk 7 and a similar lower disk 8, the two disks being integrally connected by a smaller diameter neck 9, the shape of the filter thus resulting in the formation of an annular groove 10 located between the two disks 7 and ii. The top disk '7 is provided with a plurality of spaced perforations 11 extending through it, these perforations forming ports which establish communication between the tobacco-receiving well 2 of the pipe bowl and the smoke chamber 5. In the upper surface of the disk '7 there is provided a plurality of shallow grooves 12 to facilitate the passage of the smoke into and through the perforations 11.

The filter 6 is confined in the chamber 5 between an annular shoulder 13 defining the upper end of the chamber 5, and a threaded plug 14 which is threadably received in an internally threaded ring 15 that is force-fitted into the lower end oi the cylindrical part of the pipe bowl. A sealing gasket 16 is interposed between the ring l5 and a shoulder 17 provided within the cylindrical part 3 of the bowl. A transverse slot 18 is provided in the plug 14 to enable the plug to be threadably inserted or removed to easily clean or replace the filter 6, the plug being thus moved by inserting a tool or coin in the slot If. This arrangement is such that by the removal of the plug 14, the filter is rendered accessible and it can be readily dropped out of the bottom of the bowl and cleaned and replaced or a new filter inserted.

The stem or shank of the pipe is indicated at 19, the same consisting of an elongated metal tube which may be substantially oval in cross-sectional shape. A bit 20 has an end portion 21 closely conforming in shape to the interior shape of the end portion of the stem wd removably fitting therein. The insertion of the bit into the adjacent end of the stem is limited by an annular shoulder 22 formed on the bit, contacting with the end of the stem. The opposite end of the stem receives a boss 23 formed on a split ring 24, the ring having arcuate arms 25 and 26 which embrace the cylindrical part 3 of the bowl between them as is clearly shown in FIGS. 1 and 8.

Extending axially through the stern and of such diameter as to provide an air space 27 between it and the inner surfaces of the stem, is a smoke tube 28. The same consists of a slender metal tube provided with threads 29 at one end, which threads engage in the bit 20 in a manner to fixedly attach the bit to the end of the smoke tube 28. The smoke tube is, of course, located in axial alignment with the usual smoke passage extending through the bit.

The smoke tube 28 is capable, together with the attached bit, of movement axially of the stem 19, the tube being guided in such movement by the boss 23 at one end, and by a guide sleeve 39 near its opposite end, the sleeve being preferably but not necessarily composed of nylon or some other suitable material.

The sleeve 30 is stationarily mounted within the stem 26 and forms a fixed guide, and its forward end forms an abutment for one end of a coil spring 31 encircling the tube 28 and having its opposite end in contact with a washer 32 engaging a groove in the tube 28 or otherwise fixedly mounted on the tube. This arrangement is such that the spring 31 is effective to hold the bit 20 in its seated position against the rear end of the stem 19, while causing a forward, tapered end 33 on the tube 28 to be projected out of the boss 23 and extended into the ring 24, substantially as shown in FIGS. 2. and 6.

In its normal position, as seen in FIGS. 1 and 6, the ring 24 encircles the cylindrical part 3 of the bowl of the pipe, with the upper surface of the ring contacting the annular shoulder 4. When in this position, the projecting tapered end 33 of the tube 28 enters into a bushing 40 extending radially through the wall of the part 3 of the bowl, and effects a seal with a small 'O-ring 41 maintained within the bushing 40. Through this arrangement, one end of the smoke tube 28 establishes communication with the smoke chamber 5. Located diametrically opposite to the bushing 49 is a radial pin 34 used as a registering element, and which pin enters into the slot 35' between the ends of the arms 25 and 26 of the ring 24 when the ring encircles the part 3 of the bowl.

When it is desired to remove the bowl 1 from its engagement with the stem 19, the bit 20* is grasped and is pulled out axially against the bias of the spring 31 until the part 21 of the bit is completely withdrawn out of the end of the stem 19. In this drawn-out position, the bit 20 is then rotatively moved for ninety degrees and then released and the end of the part 21 will abut against the end of the stem while so positioned that it cannot enter into the stem, holding the bit completely out of the stem. This axial movement of the tube 28 serves to Withdraw the tapered end 33 of the tube 28 out of the bushing 40 so that the bowl can then be lifted out of the ring 24- and thus become separated from the stem.

In attaching the bowl to the stem, the procedure above described is reversed. That is to say, the bit 20 is drawn out and is turned to thereby hold it in the drawn-out position, and the part 3 of the bowl is placed within the ring 24 until the shoulder 4 rests against the upper surface of the ring. In fitting the bowl within the ring, the pin 34 is used as a registering element and is entered into the slot 35 in the ring, as shown in FIG. 8. Since the pin 34 is diametrically opposite to the bushing 40, alignment of the tapered end 33 of the tube 28 with the bushing 40 is assured. The bit is then rotatively moved and thus permitted'to have the tube 28 enter into the part 21 to its seated position where the end of the stem abuts against the shoulder 22, and the spring 31 will urge the tube 28 forwardly to cause the tapered end 33 to enter the bushing 40 and effect a seal by means of the ring 41 therein located.

The above arrangement is such that the bowl can be detached from the stem at any time, or several bowls can be provided for interchangeable use. The filter is easily removable for cleaning or replacement and the parts thus readily dissassembled for any purposes whatever whenever required.

Having thus described a single embodiment of the invention, it is obvious that the same is not to be restricted thereto, but is broad enough to cover all structures coming within the scope of the annexed claims.

What I claim is:

1. In a pipe, a bowl having a lower cylindricalextension forming a smoke chamber, a filter located in said chamber, removable closure means in the bottom of the chamber for retaining the filter in the chamber, the lower part of the bowl being provided with a radial opening, a stem having a smoke tube axially idisplaceable within it, a bit connected to one end of the smoke tube, a split ring on one end of the stem and encircling the lower portion of the bowl, spring means operative to normally project one end of the smoke tube into the ringand to an extent as to cause said end of the tube to engage in the opening in the bowl while the ring encircles the lower part of the bowl, and guide means projecting from the bowl and entering between the ends of the split ring to thereby locate the IlIlg on the bowl in a manner to align the end of the smoke tube with the opening in the bowl.

ing, a pin projecting radially from the extension and located diametrically opposite to the opening, a'hollow stem provided at one end with a split ring for encirclernent of the extension, the split in said ring engaging the pin, a tubular smoke tube displaceable axially within the stem and spaced from the inner surface of the same, a guide sleeve in the stem through which the smoke tube is axially slidable, an abutment on the smoke tube, a coil spring surrounding the smoke tube and located between the guide sleeve and the abutment, the smoke tube having a forward tapered end for engagement with the opening under the bias of the spring, and sealing means located in said opening.

3. In a pipe as provided for in claim 2, wherein the opening contains a bushing in which the sealing means is in the form of an '0 ring; a bit attached to the outer end of the smoke tube, said bit having a shoulder limiting its insertion into the end of the stem under the impulse of the spring, the smoke tube being axially displaceable when a pull is exerted on the bit, and caused by such displacement to have its tapered, forward end withdrawn from the. bushing.

4. In a pipe, a bowl having a radial opening in it, a stem having a ring at one end encircling the bowl over the opening, a smoke tube located within the stem and axially slidable through it, a bit connected to one end of the smoke tube, spring means for biasing the smoke tube in a manner to cause its opposite end to enter into the opening to thereby couple the stem to the bowl, the ring being transversely split, a pin projecting radially from the bowl and located diametrically opposite to the opening therein, the pin engaging in the split part of the ring when the ring encircles the bowl and the end of the smoke tube is in alignment with the opening.

5. In a pipe, a removable bowl having a hollow lower cylindrical extension forming a smoke chamber, a ceramic spool-shaped filter located in said chamber, a threaded plug constituting a removable closure means in the bottom of the chamber for retaining'the filter therein, the extension of the bowl being provided with a radial opening having a bushing extending through it, a sealing ring in the bushing, a stem having a smoke tube axially displaceable through it, a bit connected to one end of the smoke tube, a rigid ring on one end of the stem encircling the extension of the bowl and removably receiving said extension,

spring means operative in the stem and arranged around the smoke tube to bias the smoke tube and project one end of the tube within the ring and to such an extent as to cause it to engage with the bushing in the bowl and seal 7 References Cited in the file of this patent V UNITED STATES PATENTS 327,920 Chadsey Oct. 6, 1885 940,184 Nicholes Nov. 16, 1909 1,065,008 Tufts June 17, 1913 2,068,866 Pedery et a1. Jan. 26, 1937 2,165,537 Clyne July 11, 1939 2,282,065 Hirsch May 5, 1942 2,621,660 Davidoif et al. Dec. 16, 1952 2,725,882 Christophersen Dec. 6, 1955 A in 

2. IN A PIPE, A BOWL HAVING A TOBACCO WELL, A CYLINDRICAL DOWNWARD EXTENSION ON THE BOWL, SAID EXTENSION FORMING A FILTER CHAMBER WITHIN IT, A SPOOL-SHAPED FILTER CONTAINED WITHIN SAID CHAMBER, THE EXTENSION HAVING A RADIAL OPENING, A PIN PROJECTING RADIALLY FROM THE EXTENSION AND LOCATED DIAMETRICALLY OPPOSITE TO THE OPENING, A HOLLOW STEM PROVIDED AT ONE END WITH A SPLIT RING FOR ENCIRCLEMENT OF THE EXTENSION, THE SPLIT IN SAID RING ENGAGING THE PIN, A TUBULAR SMOKE TUBE DISPLACEABLE AXIALLY WITHIN THE STEM AND SPACED FROM THE INNER SURFACE OF THE SAME, A GUIDE SLEEVE IN THE STEM THROUGH WHICH THE SMOKE TUBE IS AXIALLY SLIDABLE, AN ABUTMENT ON THE SMOKE TUBE, A COIL SPRING SURROUNDING THE SMOKE TUBE AND LOCATED BETWEEN THE GUIDE SLEEVE AND THE ABUTMENT, THE SMOKE TUBE HAVING A FORWARD TAPERED END FOR ENGAGEMENT WITH THE OPENING UNDER THE BIAS OF THE SPRING, AND SEALING MEANS LOCATED IN SAID OPENING. 